Sleep Learning Education and Empowerment for Older Korean Immigrants
SLEEP-OK
A Culturally Adapted Sleep Intervention Program for Older Asian Immigrants With Limited English Proficiency
2 other identifiers
interventional
32
1 country
1
Brief Summary
Poor sleep is common among Asian Americans. Untreated sleep problems increase the risk of chronic diseases, cognitive decline, and mortality. Cognitive behavioral therapy for insomnia (CBTI) is considered the first-line treatment for chronic sleep problems and has demonstrated significant improvement in sleep health among older adults. However, existing CBTI is built upon Western culture, making it challenging to apply for Asian immigrants who maintain close ties to their native cultures that shape and influence their sleep habits. Addressing the lack of availability of a culturally adapted sleep intervention program is the first step to filling the gap in sleep health disparity among Asian immigrants. This study aims to pilot test the feasibility and the preliminary efficacy of a culturally adapted sleep intervention program among older Korean immigrants with poor sleep, one of the fastest-growing immigrant groups in the United States with limited access to mainstream sleep therapies.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Feb 2026
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 27, 2026
CompletedFirst Posted
Study publicly available on registry
February 4, 2026
CompletedStudy Start
First participant enrolled
February 24, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 4, 2027
March 5, 2026
March 1, 2026
10 months
January 27, 2026
March 3, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Objective Sleep Efficiency
Nighttime sleep efficiency (i.e., mean percent of time in bed spent asleep at nighttime) will be calculated from 7 consecutive days and nights of wrist actigraphy (Scores range from 0 to 100%, with higher values indicating better objective sleep quality)
Immediately after the last session of the intervention
Subjective Sleep Quality
Total score on the Korean version of the Insomnia Severity Index (ISI) will be used as a measure of subjective sleep (Scores range from o to 18, with lower values indicating better subjective sleep quality)
Immediately after the last session of the intervention
Secondary Outcomes (1)
Acceptability of the Intervention
Immediately after the last session of the intervention
Other Outcomes (4)
Feasibility of Recruitment
Immediately after enrolled
Feasibility of Randomization and Retention
Immediately after enrolled
Adherence to the Intervention
Immediately after the last session of the intervention
- +1 more other outcomes
Study Arms (2)
Sleep Intervention Program
EXPERIMENTALThis is a culturally adapted sleep education program built upon key components of cognitive behavioral therapy for insomnia (CBT-I)
Control
PLACEBO COMPARATORThis involves with general information about sleep
Interventions
This group will receive information about sleep and aging, but without specific or individualized recommendations
A multicomponent behavioral sleep program, consisting of sleep compression, stimulus control, sleep hygiene, relaxation, daily physical activity, and light exposure
Eligibility Criteria
You may qualify if:
- Korean immigrants (i.e., being a resident of the United States with a birthplace in Korea)
- Able to speak, read, and write in Korean
- Aged at least 60 years
- Have a score of at least 15 on a Korean version of the Insomnia Severity Index
- Able to ambulate with or without an assistive device
- Have a score of at least 23 on a Korean version of the Montreal Cognitive Assessment (MoCA)
- Score less than 5 on STOP-BANG (or proceed with an additional testing \[Watch Peripheral Arterial Tonometry (WatchPAT) and the Epworth Sleepiness Scale if score is equal to or greater than 5 on STOP-BANG)
You may not qualify if:
- Those who are bedbound
- Those who do not meet the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) criteria for insomnia disorder
- Those who have an untreated apnea-hypopnea index (AHI) at least 15 (moderate obstructive sleep apnea) and Epworth Sleepiness Scale (ESS) at least 11 (indicating mild sleepiness) OR AHI is equal to or greater than 30 (irrespective of ESS)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of California Los Angeles
Los Angeles, California, 90095, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
January 27, 2026
First Posted
February 4, 2026
Study Start
February 24, 2026
Primary Completion (Estimated)
December 31, 2026
Study Completion (Estimated)
January 4, 2027
Last Updated
March 5, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
- Time Frame
- by the end of the project period or at the time of publication, whichever is sooner,
IPD difficulty masking the identity of participants will not be shared publicly. However, all de-identified data and metadata will be made available through National Sleep Research Resource (NSRR), an NHLBI-funded resource at the time of the associated publication or the end of this project year, whichever comes first. Final research data and metadata will be shared by the end of the project period or at the time of publication, whichever is sooner, and will remain accessible indefinitely.